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Gennadij [26K]
3 years ago
6

After heating a 10.00 g sample of potassium chlorate, a student obtains an amount of oxygen calculated to be 3.90 g. Theoretical

ly, there should be 3.92 g of oxygen in this amount of potassium chlorate. What is the percent error in this experiment?
Physics
1 answer:
Vanyuwa [196]3 years ago
5 0

Answer:

0.51 %

Explanation:

Calculated value of the amount of oxygen is 3.9 g

Theoretical value of amount of oxygen is 3.92 g

We need to find the percent error in this experiment. It is given by the difference in theoretical and Calculated value divided by theoretical and multiplying it by 100. So,

E=\dfrac{3.92-3.9}{3.92}\times 100\\\\E=0.51\%

So, the percentage error is 0.51 %.

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The minimum work per unit heat transfer will be 0.15.

Explanation:

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&& \dfrac{Q_{H}}{W_{in}} = \dfrac{Q_{H}}{Q_{H} - Q_{L}} = \dfrac{1}{1 - \dfrac{Q_{L}}{Q_{H}}} = \dfrac{1}{1 - \dfrac{T_{L}}{T_{H}}}

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8 0
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You kick a soccer ball off the ground with a velocity of 15 m/s at an angle of 40° above the horizontal
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At its maximum height, the ball will have zero vertical velocity, so the ball's velocity at this point is exactly equal to its horizontal velocity.

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Meteor Infrasound A meteor that explodes in the atmosphere creates infrasound waves that can travel multiple times around the gl
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The frequency of these waves is 4.27\times10^{-2}\ Hz

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v = \dfrac{D}{T}

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Put the value into the formula

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We need to calculate the frequency

Using formula of frequency

v=n\lambda

n=\dfrac{v}{\lambda}

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n=\dfrac{1016}{6.6}

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3 years ago
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